Travel to Rethiel the Greenwarden · Wetlands (56.2, 40.4) (requires at least Level 24). Use the map button to open exact NPC coordinates on the 2D/3D World Map.
STEP 2 · ZONE & OBJECTIVE ROUTE
Quest zone: Wetlands, Excavation Site: Wetlands (Dungeon quest — enter with a party via the instance portal).
STEP 3 · TURN-IN & REWARDS
Return to Not recorded in the source to turn in the quest and choose from 3 item rewards.